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<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Fluid\ViewHelpers\Form;
use TYPO3\CMS\Extbase\Mvc\ExtbaseRequestParameters;
use TYPO3\CMS\Fluid\Core\Rendering\RenderingContext;
use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
/**
* Validation results ViewHelper
*
* Examples
* ========
*
* Output error messages as a list::
*
* <f:form.validationResults>
* <f:if condition="{validationResults.flattenedErrors}">
* <ul class="errors">
* <f:for each="{validationResults.flattenedErrors}" as="errors" key="propertyPath">
* <li>{propertyPath}
* <ul>
* <f:for each="{errors}" as="error">
* <li>{error.code}: {error}</li>
* </f:for>
* </ul>
* </li>
* </f:for>
* </ul>
* </f:if>
* </f:form.validationResults>
*
* Output::
*
* <ul class="errors">
* <li>1234567890: Validation errors for argument "newBlog"</li>
* </ul>
*
* Output error messages for a single property::
*
* <f:form.validationResults for="someProperty">
* <f:if condition="{validationResults.flattenedErrors}">
* <ul class="errors">
* <f:for each="{validationResults.errors}" as="error">
* <li>{error.code}: {error}</li>
* </f:for>
* </ul>
* </f:if>
* </f:form.validationResults>
*
* Output::
*
* <ul class="errors">
* <li>1234567890: Some error message</li>
* </ul>
*/
final class ValidationResultsViewHelper extends AbstractViewHelper
{
use CompileWithRenderStatic;
/**
* As this ViewHelper renders HTML, the output must not be escaped.
*
* @var bool
*/
protected $escapeOutput = false;
public function initializeArguments(): void
{
$this->registerArgument('for', 'string', 'The name of the error name (e.g. argument name or property name). This can also be a property path (like blog.title), and will then only display the validation errors of that property.', false, '');
$this->registerArgument('as', 'string', 'The name of the variable to store the current error', false, 'validationResults');
}
/**
* @return mixed @todo: Really mixed here, not string?
*/
public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
{
$templateVariableContainer = $renderingContext->getVariableProvider();
$for = $arguments['for'];
$as = $arguments['as'];
/** @var RenderingContext $renderingContext */
/** @var ExtbaseRequestParameters $extbaseRequestParameters */
$extbaseRequestParameters = $renderingContext->getRequest()->getAttribute('extbase');
$validationResults = $extbaseRequestParameters->getOriginalRequestMappingResults();
if ($validationResults !== null && $for !== '') {
$validationResults = $validationResults->forProperty($for);
}
$templateVariableContainer->add($as, $validationResults);
$output = $renderChildrenClosure();
$templateVariableContainer->remove($as);
return $output;
}
}